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1 year ago

What is x in 2x − 3 + 4x = 21

Mathematics

2 answers:

Serggg [28]1 year ago

7 0

Answer: x = 4

Step-by-step explanation:

2x - 3 + 4x = 21

6x - 3 = 21

6x - 3 (+3) = 21 (+3)

6x = 24

24/6

x = 4

rosijanka [135]1 year ago

5 0

So first to rearrange the question so like terms are together

2x + 4x = 21 - 3

Then simplify

6x = 18

Then divide 6 to both sides to find x

X=3

Hope this helps!

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First to answer correctly gets brainliest

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Answer:

240 $\leq$ 12.5p + 65

14 $\leq\\$ p

Step-by-step explanation:

I'll explain the equation in different parts

12.5p - Since the number of times he visits is unknown, it has to be a variable. With each visit, however, he earns 12.5 points.

65 - This is a set value that remains constant

240 $\leq\\$ - Since he needs AT LEAST 240 points, he needs 240 points or more to get his free ticket

As for solving the equation just use properties of equality

240 $\leq$ 12.5p + 65

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2 years ago

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Thepotemich [5.8K]

Parallel because they have the same slope

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2 years ago

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2 years ago

What is the sum of 4.9 × 102 and 6.8 × 103?

dusya [7]

Answer:

The sum is

$7.92\times 10^3$

Step-by-step explanation:

We want to add

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The sum of these two numbers is:

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This is the same as:

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$490 +6800=7290$

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3 years ago

The perimeter of a rectangle is 50 cm and the length is 4 cm longer than the width. Write and solve the system of equations usin

k0ka [10]

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3 years ago